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Forum: CFX November 25, 2014, 08:49
Replies: 11
Views: 1,823
Posted By Cafard
I will try it,thanks.

I will try it,thanks.
Forum: CFX November 25, 2014, 04:20
Replies: 11
Views: 1,823
Posted By Cafard
35465 this is my centrifugal model (1/6) use...

35465
this is my centrifugal model (1/6)
use Opening and Outlet boundary
35466
and this is the mesh quality
35467 INLET
35468 OUTLET
35469 Marerial table
Forum: CFX November 25, 2014, 03:42
Replies: 11
Views: 1,823
Posted By Cafard
After check my 500K/8MPa simulation, I found...

After check my 500K/8MPa simulation,
I found some region where the state is lower than critical point,
but it condition can be simulated.

I don't know why 350K/8MPa can't be simulated!
Forum: CFX November 24, 2014, 22:34
Replies: 11
Views: 1,823
Posted By Cafard
I have read the FAQ about overflow again,and...

I have read the FAQ about overflow again,and check my mesh again.
I used BladeGen&TurboGrid to created my compressor mesh,
and I found the mesh quality near blade (boundary layer) is bad,
the...
Forum: CFX November 24, 2014, 22:14
Replies: 11
Views: 1,823
Posted By Cafard
I tried to enlarge the material data base, but...

I tried to enlarge the material data base,
but still occur error : fatal overflow.
(by the way,timestep was 7.5e-5)

Maybe the conditions was too close critical point [304K/7.38MPa] ,
so as the...
Forum: CFX November 24, 2014, 06:35
Replies: 11
Views: 1,823
Posted By Cafard
Supercritical CO2 / fatal overflow

Hello everyone,

I have simulate a supercritical CO2 in centrifugal compressor,and the simulation work well,the boundary conditions were:

inlet T/P : 500K/8MPa
mass : 1.35 kg/s
speed :...
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